http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0237983-A3
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P17-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P41-005 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12R1-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P17-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P41-00 |
| filingDate | 1987-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1988-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0237983-A3 |
| titleOfInvention | Process for the biotechnological preparation of l (-)-carnitine chloride |
| abstract | The biotechnological prepn. of L(-)-carnitine chloride of formula (I) comprises (a) reacting a racemic ester of (R,S)-3,4,-epoxy-butyric acid of formula (II) (R = 1-10C alkyl or benzyl; benzyl) with an enzyme or with a microorganism producing the enzyme, capable of hydrolysing asymmetrically and in a prevalent way enantiomer S(-), under pH conditions controlled by alkalis and sepg. the enantiomer S(-) by usual techniques from non-reacted ester (II) which is present in the R(+) form, (b) reacting the R(+) form of ester (II) with an enzyme capable of hydrolysing the R(+) form quantitatively, under pH conditions controlled by alkalis, to obtain a salt of 3,4-epoxybutyric acid of formula (III) (X = a cation such as Na, K or Li) in the R(+) form and (c) reacting the R(+) form of the salt (III) with trimethylamine in a molar excess and, after having removed the excess with HCl, obtaining (I). Pref. asymmetric hydrolysis is carried out with steapsin, pancreatin or lipase from Candida Cylindracea. Step (b) is pref. carried out using a hydrolytic enzyme pref. Subtilisina BPN', Subtilisina Calsberg or Alcalase (RTM). |
| priorityDate | 1986-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.